Misratah, Libya
Misratah, Libya

Misrata University is a university based in the city of Misrata, Libya. It was formed in 2010 by the merger of Seventh of October University and Almergab University .The university's main campus is located in downtown Misrata. Other campuses are located in the cities of Bani Walid, Zliten, Khoms, Tarhuna, Msallata and Garabulli. The university reports that it has 4,000 faculty members and enrollment of 55,500 students.Seventh of October University was established in Misrata in 1984. It included fifteen department and five colleges.The College of Medicine was started in 1997 by affiliation with the medical college at Al Fateh University. In 2003 the University’s own College of Medicine was established.Dr. Mohamed Aldwaib is head of the university.In 2010, Rasheed Mohammad Omar El-Meheesy , a law professor at Misrata University in the city of Zliten, led a committee that investigated the issuance of fake diplomas in Libyan universities and uncovered 150 fake bachelor's degrees issued by 22 universities. Eleven faculty members were fired and several students were expelled as a result of the committee's findings. On 19 May 2010 El-Meheeshy was arrested and imprisoned on charges of sexual harassment, apparently based on complaints filed by some of the expelled students. In prison, El-Meheeshy was not given access to his usual heart medication and he suffered a stroke. After he was taken to a hospital for treatment, he was handcuffed to the hospital bed. He was released on bail on 21 June pending a trial scheduled for 20 September. The Network for Education and Academic Rights issued an alert regarding his case, urging its supporters to contact Libyan authorities to urge them to ensure appropriate legal and medical treatment for El-Meheeshy and to continue the investigation of fake university degrees in Libya.The main campus in Misrata was the scene of fighting and sustained significant damage during the Libyan Civil War in 2011. However, the university's college of nursing successfully graduated 18 nursing students in May 2012. Wikipedia.

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Abuzawayda Y.I.,Misurata University
2014 9th International Conference on Digital Information Management, ICDIM 2014 | Year: 2014

Technology development has led to a change in the way governments, individuals, institutions and business entities provide quality services to the public. In Middle East, governments have embraced technology as an efficient way through which services are provided to citizens. Through e-Government, various services are provided to citizens and this is a major development. The main objective of the study is to explore the quality of e-government services in middle east. The application of various technology platforms has helped citizens in Middle East to access quality services through e-Government. Electronic government which is also known as connected or online government refers to the process by which government and citizens interact through the use of information and communication technology. The main aspects of e-Government in Middle East are the concepts of governance, information and communication technology, e-citizen and business process re-engineering. In essence, Middle East is effective in providing essential services to citizens through electronic interactions. Interaction between government and its citizens through technology is faced with certain challenges even through the benefits are numerous. The quality of e-Government services is very important as it is a way through which citizens are provided with standard, effective and essential services. © 2014 IEEE.

Abuluwefa H.T.,Misurata University
Applied Mechanics and Materials | Year: 2013

Steel reheating prior to hot rolling is a process which is necessary to achieve sound mechanical and chemical properties of the finished steel products. Heating of steel works in reheat furnaces takes place gradually and with specific rates in order to avoid the development of structural defects due to the development thermal stresses. A mathematical two dimensional heat transfer model was constructed in order to calculate steel slab heating profile through the reheat furnace with actual temperature set points of the furnace zones being used as an input to this model. Calculated slab temperatures indicated aggressive heating of the steel in the early stages of heating and that slabs remain at temperatures close to rolling temperatures for longer period of time than necessary. This finding necessitates a readjustment of slab heating strategy in order to protect furnace components and steel from overheating. © (2013) Trans Tech Publications, Switzerland.

Abuluwefa H.T.,Misurata University
Lecture Notes in Engineering and Computer Science | Year: 2012

Kinetic and thermodynamic calculations were performed on some low and high carbon steels in order to study the oxidation behaviour of the alloying elements, manganese, Mn, and silicon, Si, during annealing in H 2-N 2 atmospheres. In these calculations external and internal oxidation of the alloying elements were predicted where conditions of annealing were specified. The bulk external and internal oxidation as well as grain boundary oxidation of these alloying elements were predicted at a constant annealing temperature of 600°C and in H2-N2 gas mixtures containing up to 5 vol.%H2. The calculations showed that oxidation of Si and Mn in all annealing conditions is possible and that annealing in gas mixtures containing (1 vol.%H 2), (3 vol.%H 2) and (5 vol.%H 2) will prevent the oxidation of iron. In high carbon steel both external and grain boundary oxidation of Si may take place.

Abuluwefa H.T.,Misurata University
Lecture Notes in Engineering and Computer Science | Year: 2012

The isothermal oxidation behaviour of some carbon steels under various experimental conditions was investigated. The composition of oxidation atmosphere used in this work was chosen to approximate atmospheres found in industrial steel billet reheat furnaces. In order to study the effect of adding each gaseous component in these atmospheres experiments were also conducted in atmospheres leading to these compositions. Since the most significant oxidation of the steel occurs at high temperatures, three temperatures of 1000°C, 1100°C and 1200°C were used in the experiments. In general, it was found that rates of oxidation in free oxygen atmospheres were higher than the rates of oxidation in nitrogen-based C02 and H20 atmospheres. For oxidation in atmospheres containing higher free oxygen content, the overall oxidation is unaffected by changing the concentration of H20 or C02. However, oxidation rates were found to be independent of oxygen concentrations above 6 vol.% 02. Metallographic examination of the oxides layers revealed that in the presence of free oxygen, the three iron oxides, wustite FeO, magnetite Fe304 and hematite Fe203 were all formed. However, for oxidation in nitrogen-based C02 and H20 atmospheres only the wustite phase was present.

Azam F.,NIMS University | Amer A.M.,Misurata University | Rabulifa A.,Misurata University | Elzwawi M.M.,Misurata University
Drug Design, Development and Therapy | Year: 2014

Ginger (Zingiber officinale), despite being a common dietary adjunct that contributes to the taste and flavor of foods, is well known to contain a number of potentially bioactive phytochemicals having valuable medicinal properties. Although recent studies have emphasized their benefits in Alzheimer’s disease, limited information is available on the possible mechanism by which it renders anti-Alzheimer activity. Therefore, the present study seeks to employ molecular docking studies to investigate the binding interactions between active ginger components and various anti-Alzheimer drug targets. Lamarckian genetic algorithm methodology was employed for docking of 12 ligands with 13 different target proteins using AutoDock 4.2 program. Docking protocol was validated by re-docking of all native co-crystallized ligands into their original binding cavities exhibiting a strong correlation coefficient value (r2=0.931) between experimentally reported and docking predicted activities. This value suggests that the approach could be a promising computational tool to aid optimization of lead compounds obtained from ginger. Analysis of binding energy, predicted inhibition constant, and hydrophobic/hydrophilic interactions of ligands with target receptors revealed acetylcholinesterase as most promising, while c-Jun N-terminal kinase was recognized as the least favorable anti-Alzheimer’s drug target. Common structural requirements include hydrogen bond donor/acceptor area, hydrophobic domain, carbon spacer, and distal hydrophobic domain flanked by hydrogen bond donor/acceptor moieties. In addition, drug-likeness score and molecular properties responsible for a good pharmacokinetic profile were calculated by Osiris property explorer and Molinspiration online toolkit, respectively. None of the compounds violated Lipinski’s rule of five, making them potentially promising drug candidates for the treatment of Alzheimer’s disease. © 2014 Azam et al.

Srar J.A.,Misurata University | Chung K.-S.,Curtin University Australia | Mansour A.,Curtin University Australia
IEEE Transactions on Antennas and Propagation | Year: 2010

A new adaptive algorithm, called least mean square-least mean square (LLMS) algorithm, which employs an array image factor, F, sandwiched in between two least mean square (LMS) algorithm sections, is proposed for different applications of array beamforming. It can operate with either prescribed or adaptive F. The convergence of LLMS algorithm is analyzed for two different operation modes; namely with external reference or self-referencing. The range of step size values for stable operation has been established. Unlike earlier LMS algorithm based techniques, the proposed algorithm derives its overall error signal by feeding back the error signal from the second LMS algorithm stage LMS2 to combine with that of the first LMS algorithm section LMS 1. Computer simulation results show that LLMS algorithm is superior in convergence performance over earlier LMS based algorithms, and is quite insensitive to variations in input signal-to-noise ratio and actual step size values used. Furthermore, LLMS algorithm remains stable even when its reference signal is corrupted by additive white Gaussian noise (AWGN). In addition, the proposed LLMS algorithm is robust when operating in the presence of Rayleigh fading. Finally, the fidelity of the signal at the output of an LLMS algorithm beamformer is demonstrated by means of the resultant values of error vector magnitude (EVM) and scatter plots. © 2010 IEEE.

Blaow M.M.,Misurata University
52nd Annual Conference of the British Institute of Non-Destructive Testing 2013, NDT 2013 | Year: 2013

The magnetic Barkhausen noise (MBN) technique was used to investigate the welding induced magnetic anisotropy in steel. A stress concentration region was created by placing a weld bead on a specimen surface without machining. MBN measurements were made on the other surface of the specimen along the weld direction and perpendicular to it in a line that crosses the weld direction. The stress distribution at the back of the weld bead, as deduced from the MBN measurements was found to be dependant on the magnetic field direction in the heat affected zone. The MBN variation across the weld line with magnetic field parallel to the weld bead was found to be due to residual tensile stresses. The heat induced anisotropy was completely eliminated by shot peening the HAZ material as revealed by MBN intensity. It was concluded that the directional MBN measurements could be used to characterise the induced anisotropy and hence asses the thermal residual stresses distribution near a localized stresses concentration regions. © (2013) by the British Institute of Non-Destructive Testing. All rights reserved.

Saad E.,Misurata University | Hirakawa K.,University of Dayton
IEEE Transactions on Image Processing | Year: 2016

We propose modifications to scale-space feature extraction techniques scale-invariant feature transform (SIFT) and speeded up robust features (SURFs) that make the feature detection and description invariant to defocus blur. Specifically, the scale-space blob detection relies on the second derivative responses of images. Our analysis of circular defocus blur (which sufficiently approximates a real camera blur kernel) and its effect on scale-space blob detection suggests that fourth derivative-and not the usual second derivative-is optimal for detecting the blurred blobs, while multi-scale descriptors of blurred blobs are effective at establishing correspondences between the blurred images. The proposed defocus blur-invariant (DBI) scale-space feature extraction techniques-which we refer to as DBI-SIFT and DBI-SURF-do not require image deblurring nor blur kernel estimation, meaning that their accuracy does not depend on the quality of image deblurring. We offer empirical evidence of blur invariance by establishing interest point correspondences between sharp or blurred reference images and blurred target images. © 1992-2012 IEEE.

Elrajubi O.M.,Misurata University
International Conference on Research and Innovation in Information Systems, ICRIIS | Year: 2013

According to the desired level of analyzing words, Arabic stemming algorithms can be classified into stem-based (light stemming algorithms), and root-based algorithms. Light stemming algorithms only remove prefixes and suffixes from the words, while root-based algorithms remove prefixes, suffixes and infixes. There are several light stemmers for Arabic (Light1, Light2, Light3, Light8, and Light10), For retrieval information Light10 stemmer is out-performed the other light stemmers. In this paper, Arabic stemming algorithms are studied. And, literature review of Arabic stemmers is discussed. In addition, a new Arabic light stemmer was proposed and Implemented. The main step of the light stemmer is removing the prefixes and suffixes of the words. And because this step causes changing of the meaning of some words, many other steps are designed and implemented in the proposed stemmer. The proposed stemmer and Light10 stemmer were tested on the same Arabic data which is developed in this work. The accuracy rate of Light10 stemmer was 66%, while the accuracy rate of the proposed stemmer was 88.25 %. The reasons for incorrect stemming of the proposed stemmer are mentioned. © 2013 IEEE.

Abu-Ella O.,Misurata University | Wang X.,Columbia University
IET Communications | Year: 2013

In this study, the authors propose a transceiver system for large-scale multiple-input-multiple-output (MIMO) (LSM) wireless communications. The authors present the main challenges facing such LSM system, also, they find solutions for those problems. The transmitters in this proposed downlink system uses a simple fair user scheduling based on limited-feedback algorithm with basic random precodeing algorithm. On the other side, receivers employ constrained partial group decoder to detect their desired signals. Simulation is used to evaluate sum-rate performance of this LSM downlink system against the total number of users and signal-to-noise ratio, using different number of scheduled users and with various group sizes of jointly decoded users. Numerical results interestingly show an encouraging performance for the proposed transceiver system in this study to be considered as a candidate scheme for LSM communication systems. ©The Institution of Engineering and Technology 2013.

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